Cisco WS-X6248-RJ-45 - Catalyst 6000 Expansion Module Manual de usuario descargar pdf (Pagina 9)

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Operational Comparison

Image Management

There are different image naming conventions for systems with hybrid operating systems and for systems with Cisco

IOS Software on the Supervisor Engine. Please make sure that the correct image is chosen for given hardware. The

following sections describe the different image ﬁlenames for CatOS and Cisco IOS Software.

Operating System Files for the Hybrid OS

In the hybrid model, two separate image ﬁles are managed by the two different operating systems. The CatOS images

are stored on the Supervisor bootﬂash or PCMCIA ﬂash card. The Cisco IOS image for the MSFC is stored on the

MSFC bootﬂash. The images can be moved between the active and standby supervisors using the copy command.

Images can be uploaded to the switch via the TFTP application. Cisco Catalyst 6500 systems that run hybrid use the

image names listed in Table 3.

The same MSFC boot helper image (c6msfc-boot) is used for the hybrid OS and Cisco IOS Software. It is stored as

the ﬁrst ﬁle on the MSFC bootﬂash. The boot helper image is a limited function system image that has network

interface code and end-host protocol code.

Note:

The boot helper must never be erased on the MSFC(1) and should be the ﬁrst image on the MSFC bootﬂash.

The MSFC2 hardware does not require the boot image as it has more sophisticated ROMMON

functionality;

however, keeping a boot image in the MSFC bootﬂash is still a good practice for last resort scenarios.

Operating System Files for Cisco IOS Software

Cisco IOS Software requires the single image be present on a device local to the Supervisor because it is a bundled

image for two processors and the SP boots ﬁrst. The image can reside either on the Supervisor bootﬂash

(sup-bootﬂash:) or the ﬂash card (slot0: or disk0:); it cannot reside on the MSFC bootﬂash. Cisco IOS system ﬁles

start with ‘c6supxy’ where x is the supervisor model number and y is the MSFC model number:

Table 3 Hybrid OS Image Names

Image File Description

cat6000-supx CatOS image for Supervisor Engines where x is Sup1 or Sup2.

Stored on the Supervisor bootﬂash or slot0.

c6msfcx-boot-mz Layer 3 boot image where x is MSFC or MSFC2. Stored on the MSFCx bootﬂash: only.

This image is

required

for running Cisco IOS Software on MSFC,

recommended

MSFC2.

c6msfc-is-mz

c6msfc2-is-mz

Layer 3 image for the MSFC or MSFC2; works with the CatOS image on the Supervisor

Engine. Stored on the MSFC bootﬂash: or sup-slot0:

2. ROMMON is the low-level software used for fundamental hardware operation before CatOS or Cisco IOS Software take control of the system.

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Cisco WS-X6248-RJ-45 - Catalyst 6000 Expansion Module Manual de usuario Pagina 9